Lock.



W. E. BOWL.

LOCK.

APPLICATION FILED AUG-M1913.

2 SHEETS-SHEET 1.

W. E. BOWL.

LOCK.

APPLICATION FILED AUG-1,1913

Patented Jan. 23, 1917.

Z SHEET 1% S-SHEE'I 2.

UNETE are ruin.

LOCK.

Application filed August 1, 1913.

T 0 all whom it may concern:

Be it known that I, VVALTEP. EDWARD BOWL, a subject of Great Britain, residin at lVarborough, VVallingford, in the county of Berks, England, have invented certain new and useful Improvements in Locks, of which the following is a specification.

This invention relates to tubular mortise locks of that known construction or kind wherein two bars are secured to the rear of the bolt at a distance apart and are, at the extremities remote from the bolt, merged into, or connected to, an end-piece between which and'the closing cap of the casing a spring is situated to shoot the bolt. Between the bolt-bars a stirrup is slidably arranged with which the handle co-acts to withdraw the bolt against the spring. This stirrup is connected to a slide that is carried upon, and attached to, one of the bolt-bars. This slide is formed with a slot for moving it under the agency of the key, which, further, co-acts with a spring-catch that is pivoted to the opposite bolt-bar to the one to which the slide is connected, and is adapted to engage and disengage the slide. In such construction, when the bolt is unlocked by the key, it is impossible to withdraw it until the key is removed from the lock. This is a disadvantage in general circumstances.

The object of my invention is to obviate the said disadvantage.

Accordingly, the invention comprehends, chiefly, the combination with the aforesaid casing, bolt-bars, and slide, of a stationary member slotted to correspond with the keyholes in the casing, and shaped to permit the key turning completely within same.

The invention, further, comprehends a re-arrangement of the spring-catch relatively to the said bolt-bars and slide to meet the provision of the said stationary member, according to which I pivot the spring-catch directly to the slide instead of to a bolt-bar as in the known construction, and adapt it to engage and disengage the bolt-bar and not the slide as heretofore.

I will now fully explain the invention with reference to the accompanying drawings wherein Figure 1 is a longitudinal vertical central section illustrating a lock embodying it, with all the components assembled in the locked position; and Fig. 2 is a correspond- 111g view, representing the unlocked position Specification of Letters Patent.

Patented Jan. 23, 1911?.

Serial No. 782,395.

and the bolt withdrawn. Fig. 3 is a transverse section on the line ZZ in Fig. 2; and Fig. 4- is a like view on the line YY in the same figure. Fig. 5 is an underside plan of some of the components shown in Fig. 2 and detached from the others; and Fig. 6 is a top plan of other detached components illustrated in Fig. 2. Figs. 7 to 14 inclusive illustrate the stationary member separately, and on an enlarged scale as compared with preceding figures, Fig. 7 being an end elevation, Fig. 8 a top plan. Fig. 9 an underside plan, Fig. 10 a section on the line XX in Fig. 8 and in Fig. 9, Fig. 11 a section on the line l/V-N in Fig. 8 and in Fig. 9, Fig. 12 a side elevation, Fig. 13 a perspective view of the inside, and Fig. 14 a like view of the outside.

The sameletters of reference are used throughout to designate the same parts. Referring generally to the various figures, a denotes the bolt; 6 and c the bars secured thereto; (Z the spring co-acting with the bolt a; e the casing; f the stirrup slidably arranged between the bolt-bars b and 0; g the handle engaging and disengaging the stirrup f; it the slide connected to the stirrup f at z, and to the bolt-bar c at 7', 7c the slot in the slide 72, for cooperating with the key Z, m the spring-catch likewise co-acting with the key Z and n the stationary member constituting the chief feature of the present invention. The aforesaid components are constructed and combined in the usual way, as represented in the drawings, with the exception of the springcatch m which, as explained, constitutes a subordinate feature of the invention; and with the exception, of course, of the stationary member a which I arrange, as shown in Figs. 1, 2 and 3, in close proximity to the slide 7b and spring-catch on.

As illustrated best in Figs. 7 to 14 inclusive, I construct the said member a as a semi-circular or arched piece, viewed transversely, and of a convenient length, the sides 79, n being prolonged beyond the body and shaped to fit the casing e, in other words, the member a may be likened to a short semi-circular-sectioned or half tube having a curved flange n at each end for abutting against the casing 6. Thus a cavity n is obtained whose function is to receive the ward or wards of the key; in the example the cavity is divided by a partition 11?, thereby producing two recesses for a two-ward key. The sides M, n of this member 11, and likewise the partition a", are slotted at 0 to agree with the key-holes p, g) in the casing 6, while its top is grooved as shown at q to engage the corresponding bolt-bar Z). In addition, the prolonged portions of the sides or flanges a a are perforated at r to receive screws 8, s pas ed from the outside of, and through, the casing 6. Thus the member a is held stationary within the casing c and between the boltbars b and 0, while its hollow formation or cavity a admits of the key Z being completely turned and housed in the unlocked position as re n'csented in Figs, 2 and 3.

I will now refer to the spring-catch m This 1 fashion generally in the customary manner, that is to say with arms 2?, t and a tail u. I pivot the catch m directly to the slide it at 1; so that the free ends of the arms 25, L are in proximity to the key-slot 7c in the slide h, while between the tail a and the opposite bar 6 the spring w is arranged as usual. ()n the underside of the tail u I provide a projection m for cooperating with a pair of apertures or holes y, g provided, as illustrated in Figs. 1, 2 and 5, at suitable intervals in the bolt-bar 0 to which the slide it is connected, and located between the slide it and the bolt 0:. Thus, as shown in Fig. 1, when the projection m of the catch m is in engagement with the aperture or hole 11 nearest the bolt a, the boltis locked, whereas, as represented in Fig. 2, it is unlocked on the other engagement, these actions, as usual, resulting on the corresponding oper ation of the key Z whose housing within the stationary member 92 on unlocking occurring admits of the operative effect of the handle 9 without removing the key in the unlocked position.

The connection between the bolt a, and the bolt-bars b and 0 may be efi'ected as customarily, that is to say, the bolt 06 and bolt-bars Z) and 0 may be permanently attached. However, as illustrated in Figs. 1 and 2, I preferably arrange them so that the bolt a may be detached, and re-attached in the reverse way, this being achieved by forming a shank .2 on the bolt (.4! "for co-acting with a socket 10 provided by suitably shaping or merging the ends of the bars Z) and 0 into a solid endportion 11, and completing the connection by a transverse pin or bolt 12.

What I claim as my invention and desireto secure by Letters Patent is 1. In a lock of the kind specified, the combination with the casing, bolt-bars, and slide, of a spring-catch pivoted directly to said slide, and having a tail and a projection on said tail, and of a pair of apertures in one of said bolt-bars cooperating with said projection of said tail, substantially as described.

2. In a lock having a casing, bolt-bars and slide as specified, in combination, a member slotted to correspond with the keyholes in said casing and shaped to permit the key turning completely within same, means for holding said member stationary, and a spring-catch pivoted to said slide and engaging and disengaging one of said boltbars, substantially as described.

3. In device of the character substan tially as described, the combination with the casing, bolt bars, slide and-spring catch, said spring catch pivoted to said slide and having a tail, and projection on said tail, a pair of apertures in one of said bolt bars cooperating with said projection, a member comprising an arched body, said body having slotted sides corresponding with the key holes in said casing, and means for holding said member stationary with said casing.

4. A device of the character substantially as described, comprising a casing, bolt bars slidably contained therein, a member comprising an arched body having its sides extended and bearing upon said casing, means for holding said member stationary comprising a groove in said body engaging one of said bolt bars and screws engaging said sides and said casing, and a spring catch pivoted to a slide and engaging anddisengaging one of said bolt bars.

5. In a device o1 the character substantially as described, a casing, bolt bars within said casing, a slide, a stationary member forming a housing for a key, and a spring catch pivoted to said slide and cooperating with means on one of said bolt bars.

6. In a lock of the character substantially as described, the combination of a casing, bolt-bars, and means adapted to engage a bolt-bar with a member forming ahousing for a key adapted to operate said means, and said member constructed whereby said bolt bars may be operated when in unlocked position independently of the, key,- within said casing.

7. In a lock of the character substane tially as described, the combination of a casing, bolt-bars, a slide, and means carried by said slide adapted to engage a bolt-bar, with a member forming a housing for a key for operating said slide, and said member constructed whereby said key may turn completely within the same and said bolt bars when in unlocked position. may be moved independently of the key.

WALTER EDlVARD BOWL.

Witnesses:

JAMEs ANDREW HARVEY, Hans Gnone, Sznnao.

o'er ies of thispatent may be obtained for five cents each, by addressing the f'oonimissioner of Patents, Washington, D. G. 

